Metal-worker&#39;s perforating-machine.



M. J. LENIHAN.

METAL WORKER/S PERFORATING MACHINE.

APPLICATION FILED DEC. 5, 1912.

1,060,772, Patented May 6, 1913.

FIG. I

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A k A 15 (a INVENTOR WITNI:SS'ES 711. BY

A TTORNE Y COLUMBIA PLANOUIZAPH. 60., WASHINGTON. D. :4

UNITED STATES FATEN'I @FFIQE.

MICHAEL J'. LENII-IAN, OF PHILADELPHIA, PENNSYLVANIA.

METAL-WORKERS PERFORATING-MACI-IINE.

Application filed December 5, 1912.

To all whom it may concern Be it known that I, MroHAEL J. LENII-IAN, acitizen of the United States, residing at the city of Philadelphia, inthe county of Philadelphia and State of Pennsylvania, have inventedcertain new and useful Improvements in Metal-VVorkersPerforating-Machines, of which the following is a specification.

My invention has relation to a portable machine for series perforatingof metal, such as roofing sheets, sheets for piping, and furnace drumsor the like; and in such connection it relates to the particularconstructive arrangement of the machine operable either right or lefthanded, for the defined purposes.

The nature, scope and characteristic features of my invention will bemore fully understood from the following description taken in connectionwith the accompanying drawings forming part hereof, in which- Figure 1,is a front elevational view of a portable metal workers perforatingmachine, embodying main features of my said invention. Fig. 2, is avertical sectional View through the machine, on the line 22, of Fig. 1;and Fig. 3, is a view partly in top or plan and in section, on the line3-3, of Fig. 1, showing the vertically operating plunger-head for maledies of the machine, and the side and end means for maintaining the saiddie-holder in true alining relation to the standard through which it ismanually raised and lowered.

Referring to the drawings a and a are end standards carrying at thelower por-. tion a bottom plate a, provided with a series of detachableperforated female dies 7). The said standard in the upper portion hassecured thereto a housing a for a plungerhead 6 to which is detachablysecured a series of threaded shanks 6 for detachably securing male dies6 thereto, as clearly illustrated in Fig. 2. The housing a near each endis provided with bearings a and a for rotary reciprocating members a anda, connected by a movable link a with each other, as clearly illustratedin Fig. 1, and both of said members are provided with Specification ofLetters Patent.

Patented May 6, 1913.

Serial No. 735,009.

the two sets of movable and fixed dies respectively, of the machine, aswill be readily and fully understood from Fig. 1, of the drawings. Theplunger-head b slidable up and down in the housing a on the sides andends of the same is provided with threaded take-up devices a, c and 0for maintaining the plunger-head at all times in true alining condition,in the manipulations of said device. This is desirable so that the lineof holes formed by the dies will always be of uniform size and in truealining relation with respect to each other.

The machine can be operated either right handed or left handed by simplyremoving the operating rod a from the socket a to the socket a andmanipulating the plunger-head 6 then in the direction as indicated bythe arrow in Fig. 1.

Having thus described the nature and objects of my invention, what Iclaim as new and desire to secure by Letters Patent is In a machine ofthe character described, a series of male dies secured to a plungerheadand operable vertically up and down against a series of complementalfemale dies, the plunger-head of said dies supportingly held by means oflinks connected with supported rotary members coupled to each other andan operating rod detachably connected with either of said rotarymembers, for reciprocating the same, substantially as and for thepurposes described.

In witness whereof, I have hereunto set my signature in the presence ofthe two sub-- Copies of this patent may be obtained for five cents each,by addressing the Commissioner of Patents, Washington, D. G.

